stonemetz



(No Model.) I 2 Sheets-Sheet 1.

J. H. STONEMETZ. CUTTING AND SWITCHING MECHANISM FOR WEB PRINTINGMACHINES.

No. 452,243. Patented May 12,1891.

Fifi,

Al: %%W- v2 Sfleets s 2.

(No Model.)

J. H. STONEMETZ. CUTTING AND SWITCHING MECHANISM FOR WEB PRINTINGMACHINES.

v HEW Patented May 12 V 1 3 m q fix Q '7 i l4 4 W A H V. 7 0. a? M 4 'WFILU Joan mez UNITED STATES PATENT OFFICE.

JOHN H. STONEMETZpOF MILLBURY, MASSACHUSETTS, ASSIGNOR TO THE STONEMETZPRINTERS MACHINERY COMPANY, OF SAME PLACE.

CUTTING AND SWITCHING MECHANISM FOR WEB-PRINTING MACHINES.

SPECIFICATION forming part of Letters Patent No. 452,243, dated May 12,1891.

Application filed November 25, 1890. Sen'al No. 372,648. (No model.)

T0 to whom, it may concern:

- Be it known that 1, JOHN H. SroNEMErz, a citizen of the United States,residing at Millbury, in the county of \Vorcester and State of cylindermechanism hereinafter set forth and explained, and illustrated in theaccompanying drawings, in which- Figure 1 is a side elevation of asection of a web-printin g press embodying my improved cutting andswitching mechanism. Fig. 2 is an end elevation of the same. Fig. 3isahorizontal section of same on the line m a: in Fig. 2. Figs. 4 and 5are detail views illustrative of the travel of alternate sheets.

Like letters refer to like parts in all of the figures.

In the construction of my improved webprinting-press cutting andswitching cylinder mechanism shown, A A are sections of the the sides ofa printing-press frame. In the portion A A of the frame I mount acylinder B, and directly under it I mounta switchingcylinder 0, and tothe right of and adjacent to the cylinder (3 and on the same horizontalplane therewith I mount a second switchingcylinder D, these cylinders Oand D being of equal size and of such diameter that a printed sheet whenout off of the web will reach nearly or quite around the peripherythereof. The shaft E of the cylinder D is provided on the outer endthereof with a suitable gearing (not shown) inter-meshing with thegearing on one of theimpression or tympan cylinders of the press (notshown) and is driven thereby. The cylinders D, O, and B are also gearedtogether by means of gearwheels of equal size (1, c, and I), so thatthey rotate at equal speed.

From the periphery of the cutting-cylinder B projects an ordinaryserrated cutting-knife E, adapted to enter a longitudinal groove 6 inthe switching-cylinder C, so as to sever the web F at each revolution ofthe cylinders B and O;

In the cylinders O and D are longitudinal grooves G,in which areradially-moving bars or ribs H and II, which extend beyond the ends ofthe cylinders C and D, where they are provided with friction-rollers h,as and for the purpose hereinafter set forth.

In the bottoms of the grooves Gare secured radially-projecting pins g,which project outward through radial holes a in the bars or ribs H and Hand beyond said ribs slightly above the periphery of the cylinders O andD, holes d being provided in the periphery of the out ting-cylinder B atthe rear of the cuttingknife E to receive the points of the pins g onthe cylinder C when they are rotated, and holes f and f are alsoprovided in the radiallymoving bars or ribs H and H to receive thepoints of the pins 9 in the cylinders O and D, as and for the purposehereinafter set forth. In the bottoms of the grooves G are also spiralsprings I, which operate toforce the bars or ribs II and H outwardradially, as hereinafter set forth.

On the shafts J and E of the cylinders O and D are loose internalcam-wheels K K and K K, which engage with the friction-rollers h on theends of the bars or ribs H and H. These cam-wheels K and K are gearedtogether and are driven by gear-wheels L L, intermeshing with thegearing on the camwheels K K, the gear-wheels L and L being mounted on ashaft 1, which has on one end thereof a gear-wheel M, which intermesheswith a gear-Wheel N on the shaftE 0f the cylinder D, the gearing M Nbeing so proportioned as to drive the cam-wheels K K and K K at one-halfof the speed of the cylinders C and D, both of the cylinders O D and thecams K K traveling in the same direction. Each of the cams K K and K Khas a depression 0 therein, and until the'friction-rollers hon the barsor ribs llv and ll enter the depression 0 in the cams K K and K K thebars or ribs 11 and ll are retained bysaid cam-wheels at the bottoms ofthe grooves G in the cylinders C and D with the springs I compressed.hen, however, the rollers h enter the depression 0 in the cams K K and KK, the springs I operate to force the bars or ribs H and Il radiallyoutward a snfiicient distance to cover the outer ends of the pins g, soas to push the sheet off therefrom. The cam-wheels K K and K K are soset with regard to the depressions O therein and with relation to theradially-moving bars 01' ribs H and II that each time the ribs or bars Hand H meet during the rotation of the cylinders C and D the depression 0in either the cams K K or K K also reaches the same point and allows therib or bar H or II, as the case may be, to move outward, as illustratedin Fig. 2, while the depression 0 in the other cam is at the oppositeside of its cylinder. This is accomplished by having the cams move atone-half the speed of the cylinders. It will be ob served that while thecutting cylinder B meets the cylinder (7 and severs the web it alsoforces the front end of the web down upon the pins g in the cylinder 0,which pins lead the front end of the web around the cylinder C and downbetween the cylinders C and D, where (in the case illustrated in Fig. 2)the depression 0 in the cam K on the cylinder D meets the rollers on thebar or rib II and allows it to move outward, so as to cover the pins gin the cylinder D, so that they will not engage with the front end ofthe sheet, which is still retained by the pins g in the cylinder 0 andcarried on around said cylinder until it is detached therefrom by theoperation of the fingers P, hereinafter described. \Vhen, however, thissheet is sev' cred from the web by the next rotation of thecutting-cylinder B, and the front end of the web is again forced downupon the points of the pins g in the cylinder 0, and the front end ofthe web is again carried down between the cylinders C and D, thedepression 0 in the cam K 011 the cylinder C has passed around to thepoint of contact of the two cylinders and allows the bar or rib If onthe cylinder 0 to move outward and push the front end of the sheet offof the pins 9 in the cylinder 0 and onto the pins g in the oylinder D,which pins g then lead the front end of the sheet around the cylinder Duntil it is detached therefrom by the fingers P, hereinafter described.Thus it will be observed that at each alternate revolution of thecylinders O and D one sheet travels to the left around under thecylinder 0 and the next sheet to the right around under the cylinder D.

Around the peripheries of the cylinders C and D are annular grooves in,and on the left of the cylinder 0 and the right of the cylinder D arerock-shafts Q and Q, on which are mounted fingers l. and l, whichproject down under the cylinders G and D and enter the rooves m in saidcylinders and operate to throw the front ends of the sheets elf of thepoints of the pins 9 in the cylinders C and D when the front ends of thesheets reach said fingers in their traverse around the cylinders, sothat the sheets will pass from the cylinders directly intopaper-folders. (Not shown These shafts Q and Q are also provided withhandles 1 on the outside of the press-frame, by means whereof thetingers P and P may be l wered down from the cylinders O and D, so as toallow the sheet to be led on around said cylinders for the purpose ofaccumulating one sheet upon another.

When it is desirable to accumulate one sheet upon another, the arm g onthe rockshaft Q is moved forward, so as to move finger P out of contactwith the cylinder 0. Then the first sheet is carried on around thecylinder 0 and the front end of a second sheet 18 received on the pins 9011 top of the first sheetthat is to say, the front end of the web fromwhich a second sheet is to be cut is 1mposed thereon at the secondrevolution of the cylinder C-and they are then carried down between thecylinders O and D, at which point the depression 0 in the cams K K onthe cylinder 0 allows the bar or rib II in the cylinder C to moveoutward and push off the front ends of the accumulated sheets from thepins 9 in the cylinder C and onto the pins in the cylinder D, which pinsg lead the accumulated sheets on around the cylinder D until thrown offby the fingers P, operating in the radial grooves 172 in the cylinder D,as in the case of alternate single sheets hereinbefore described. Itwill thus be observed that the cylinders C and D operate not only toswitch and deliver sheets alternately to the right and left, but also toaccumulate sheets one upon another and deliver the same ready to befolded together.

Having thus fully described my invention so as to enable others toconstruct and use the same, what I claim as new, and desire to secure byLetters Patent of the United States, is

l. The combination, in a web-printing-press switching-cylinder, ofstationary pins secured in said cylinder and projecting radially beyondthe periphery thereof, with a bar or rib operating radially in alongitudinal groove in the cylinder and adapted to move outward to orbeyond the points of said pins, substantially as and for the purpose setforth.

2. The combination, in a Web-printing-press switching-cylinder, ofstationary pins secured in a longitudinal slot or groove in theperiphcry of said cylinder and projecting radially beyond the peripheryof the cylinder, with a bar or rib operating radially in saidlongitudinal slot or groove in the cylinder and adapted to move outwardto or beyond the points of said pins, and a cam or cams at one or bothends of said cylinder for operating said bar or rib, substantially asand for the purposeset forth.

3. The combination, in a web-printing-press switching-cylinder, of aradially-moving bar or rib in a longitudinal groove in the periphery ofsaid cylinder, stationary pins projecting radially above or beyond saidbar or rib, and throw-off fingers adapted to strip the sheet from saidcylinder.

4. The combination, in a web-printingness switching mechanism, ofduplicate switchingcylinders carrying pins adapted to engage the frontend of an incoming sheet, a cutting device operating in contact with oneof said cylinders, and throw-01f fingers operating to strip the sheetfrom said cylinders.

5. The combination,in a web-press cutting and switching mechanism, ofacutting-cylinder, as B, switching-cylinders, as O and D, andgear-wheels, as b c d, of equal size, connecting said cylinderstogether, with longitudinal bars or ribs, as H H, in groove, as G,

in the peripheries of said cylinders C and D, pins, as g, projectingradially above or beyond said bars or ribs H H, cam-wheels, as K K, ateach end of the cylinder 0, engaging with friction-rollers, as h, oneach end of the bar or rib H, springs, as I, in the cylinder 0,

under the bar or rib H, like cam-wheels, as

JOHN H. STONEMElZ.

Witnesses:

AROHIBALD COLE, J. D. CLARK.

